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Maths CCEA C3 - Trigonometry Identity Watch

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    prove identity

    (tan(theta) + cot(theta))^2 = sec^2(theta) + Cosec^2(theta)
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    (Original post by apaul322)
    prove identity

    (tan(theta) + cot(theta))^2 = sec^2(theta) + Cosec^2(theta)
    1. Take the LHS and expand the bracket. What do you get?
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    (Original post by apaul322)
    prove identity

    (tan(theta) + cot(theta))^2 = sec^2(theta) + Cosec^2(theta)
    If I expand the LHS I got:

    tan2 x + 1 + 1 + 1/tan2x which simplifies to

    tan2 x + 2 + 1/tan2x

    Is this what you got?
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    (Original post by emx_eco)
    If I expand the LHS I got:

    tan2 x + 1 + 1 + 1/tan2x which simplifies to

    tan2 x + 2 + 1/tan2x

    Is this what you got?
    Yes thank uu
 
 
 
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